2011 6th International ICST Conference on Communications and Networking in China (CHINACOM)最新文献

Frequency-domain iterative inter-code interference combined with parallel interference cancellation for cooperative-MIMO multi-code DS-CDMA 协同mimo多码DS-CDMA的频域迭代码间干扰与并行干扰消除

2011 6th International ICST Conference on Communications and Networking in China (CHINACOM) Pub Date : 2011-08-17 DOI: 10.1109/ChinaCom.2011.6158214

Bo Liu, W. Meng, Qiyue Yu, X. Chen

{"title":"Frequency-domain iterative inter-code interference combined with parallel interference cancellation for cooperative-MIMO multi-code DS-CDMA","authors":"Bo Liu, W. Meng, Qiyue Yu, X. Chen","doi":"10.1109/ChinaCom.2011.6158214","DOIUrl":"https://doi.org/10.1109/ChinaCom.2011.6158214","url":null,"abstract":"In future wireless communications, it is severe frequency-selective fading channel to support high data rate; meanwhile the available bandwidth becomes limited. To improve the spectrum-efficiency, one of the promising techniques is multiple input multiple output (MIMO) multiplexing technique. However, the space of one user terminal is limited, and it is difficult to accommodate more antennas in one terminal. Thus, cooperative communication is proposed, to achieve diversity and multiplexing gain via different user terminals. In this paper, a cooperative-MIMO based on multi-code direct sequence code-division multiple access (DS-CDMA) system is presented, which improves the spectrum efficiency a lot. However, the severely fading channel degrades the bit error rate (BER) performance of the proposed system significantly. The paper provided a frequency-domain iterative inter-code interference (ICI) combined with parallel interference cancellation (PIC) technology (ICP), which makes it possible to eliminate the interference between antennas and the residual inter-code interference between codes. From the simulation results, it is derived that the proposed method improves BER performance and the throughput of the system significantly.","PeriodicalId":339961,"journal":{"name":"2011 6th International ICST Conference on Communications and Networking in China (CHINACOM)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121826531","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

PAPR of hybrid carrier scheme based on weighted-type fractional Fourier transform 基于加权型分数阶傅里叶变换的混合载波方案的PAPR

2011 6th International ICST Conference on Communications and Networking in China (CHINACOM) Pub Date : 2011-08-17 DOI: 10.1109/ChinaCom.2011.6158155

Lin Mei, X. Sha, Naitong Zhang

引用次数: 8

Joint distributed source and network coding for correlated information multicasting 联合分布式源和网络编码的相关信息组播

2011 6th International ICST Conference on Communications and Networking in China (CHINACOM) Pub Date : 2011-08-17 DOI: 10.1109/ChinaCom.2011.6158244

Shaoshuai Gao

引用次数: 4

The development of satellite mobile communication system 卫星移动通信系统的发展

2011 6th International ICST Conference on Communications and Networking in China (CHINACOM) Pub Date : 2011-08-17 DOI: 10.1109/ChinaCom.2011.6158322

Xuan Feng, Q. Tan, Zongchuang Liang

引用次数: 4

Low complexity user scheduling algorithms for uplink multiuser MIMO systems 面向上行多用户MIMO系统的低复杂度用户调度算法

2011 6th International ICST Conference on Communications and Networking in China (CHINACOM) Pub Date : 2011-08-17 DOI: 10.1109/ChinaCom.2011.6158145

Liang Li, Ling Qiu, Guo Wei

引用次数: 1

A wavelength assignment and traffic control scheme in reservation slotted OBS rings 预留开槽OBS环的波长分配和流量控制方案

2011 6th International ICST Conference on Communications and Networking in China (CHINACOM) Pub Date : 2011-08-17 DOI: 10.1109/ChinaCom.2011.6158254

Wen-Shiang Tang, Yao-Ting Hsieh, Chung-Ju Chang, Wen-Ching Chung

{"title":"A wavelength assignment and traffic control scheme in reservation slotted OBS rings","authors":"Wen-Shiang Tang, Yao-Ting Hsieh, Chung-Ju Chang, Wen-Ching Chung","doi":"10.1109/ChinaCom.2011.6158254","DOIUrl":"https://doi.org/10.1109/ChinaCom.2011.6158254","url":null,"abstract":"In this paper, we design a slotted OBS ring with a proposed reservation signaling protocol. Also, the slotted OBS ring is designed with a wavelength assignment and traffic control (WATOR) scheme to achieve high bandwidth utilization, fairness, and stability. The WATOR scheme adopts a reservation mechanism to avoid burst collisions in the slotted OBS ring system which employs no transit buffers in each node for the reason of bypassing the traffic directly. It is sophisticatedly composed of a wavelength assigner to effectively allocate the ingress data bursts (DBs) with a wavelength and a traffic controller to determine a proper advertised fair rate. The TC further contains a local fair rate generator (LFRG) and an advertised fair rate generator (AFRG). The former generates a local fair rate not only to satisfy the ring ingress aggregated with spatial reuse (RIAS) fairness but also to diminish the effect of the propagation delay; and the latter decides the advertised fair rate referring to the local fair rate generated by the former. Simulation results show that the WA achieves system utilization higher than a group scheduling (GS) scheme [11] by about 5%, and the TC can stabilize all flows much better than but DBA [12].","PeriodicalId":339961,"journal":{"name":"2011 6th International ICST Conference on Communications and Networking in China (CHINACOM)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128764768","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Advanced Sensor MAC protocol to support applications having different priority levels in Wireless Sensor Networks 高级传感器MAC协议，支持无线传感器网络中具有不同优先级的应用程序

2011 6th International ICST Conference on Communications and Networking in China (CHINACOM) Pub Date : 2011-08-17 DOI: 10.1109/ChinaCom.2011.6158175

Vintu Jose Alappat, Nitish Khanna, A. Krishna

{"title":"Advanced Sensor MAC protocol to support applications having different priority levels in Wireless Sensor Networks","authors":"Vintu Jose Alappat, Nitish Khanna, A. Krishna","doi":"10.1109/ChinaCom.2011.6158175","DOIUrl":"https://doi.org/10.1109/ChinaCom.2011.6158175","url":null,"abstract":"The initial deployment of wireless sensor networks focused more on applications which collected periodic information from places which are not easily accessible. As a result the Medium Access Control (MAC) protocols for Wireless Sensor Networks (WSN) focused more on minimizing per node energy consumption to extend the life span of sensor nodes. This lead to the design of sensor MAC protocols which treats both critical and non critical data generated by applications in the same way. The technical advancements in the development of new sensor nodes which consumes less energy and performs more tasks has opened up new fields of application for WSN. Looking forward there will be a need to support applications that generates data having different priority levels in WSN. This paper proposes a novel MAC protocol for WSN which can support applications, that senses critical random events, by transmitting these packets with higher priority. The simulation results shows that the proposed approach reduces the delay and packet loss by a huge margin when compared to existing Sensor MAC(S-MAC) framework. It achieves this reduction in delay and packet loss rate without compromising much on the per node energy consumption. This technique can be applied to any WSN that needs to cater applications that generate random high priority data.","PeriodicalId":339961,"journal":{"name":"2011 6th International ICST Conference on Communications and Networking in China (CHINACOM)","volume":"120 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128487901","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 8

Analysis and emulation of the small-scale fading characteristics in the high-speed rail scenarios 高速铁路场景下小尺度衰落特性分析与仿真

2011 6th International ICST Conference on Communications and Networking in China (CHINACOM) Pub Date : 2011-08-17 DOI: 10.1109/ChinaCom.2011.6158336

Linyi Gao, Z. Zhong, B. Ai, Lei Xiong, Haoxiang Zhang

引用次数: 11

Concatenation-assisted symbol-level combining scheme based on LR for MIMO systems with ARQ 带ARQ的MIMO系统中基于LR的级联辅助符号级组合方案

2011 6th International ICST Conference on Communications and Networking in China (CHINACOM) Pub Date : 2011-08-17 DOI: 10.1109/ChinaCom.2011.6158231

Bin Zheng, Hui Zhao, Xiaoping Zhou, Wenbo Wang, Bin Wu

引用次数: 3

Double-threshold cooperative detection for cognitive radio based on weighing 基于加权的认知无线电双阈值协同检测

2011 6th International ICST Conference on Communications and Networking in China (CHINACOM) Pub Date : 2011-08-17 DOI: 10.1002/wcm.2219

Xin Liu, Chengwen Zhang, Xuezhi Tan

引用次数: 18